# study=("zhangsan","lisi")
# # print(type(study))
# # print(study)
# # print(study[0])
# # print(study[-1])

# nums ={100,1,2,3,5,4,6,6,8,7,102,101}
# print(nums)
# # print(nums[0])
#
# print(type(nums))
#
# # 集合转化为列表
# nums_list=list(nums)
# print(nums_list)
# print(type(nums_list),nums_list)
# # 集合转换为元组
# nums_tuple=tuple(nums)
# print(type(nums_tuple),nums_tuple)
# # 将列表转换为集合
# words=["a","b","c","d","a","b"]
# words_set=set(words)
# print(type(words),words_set)

# nums=[10,12,2,4,2,15,21,1,10,12,13]
# nums_set=set(nums)
# print(nums_set)
# nums_list=list(nums_set)
# print(nums_list)
# nums_list.sort()
# print(nums_list)

# user ={
#     "name":"挺爽",
#      "age":1000,
#      "frinds":["张三","李四"]
# }
# print(type(user),user)


